Percutaneous surgical apparatus and percutaneous surgical device

Abstract

The present application provides a percutaneous surgical apparatus (200) and a percutaneous surgical device (100), which enables more precise percutaneous ultrasonic inspection and measurement. The percutaneous surgical apparatus (200) comprises an ultrasonic probe (1) and a hollow channel needle (2), wherein a distal end of the channel needle (2) is a sharp tip, an opening (21) is formed in a tube wall of the channel needle (2) close to the distal end, the ultrasonic probe (1) is arranged in the channel needle (2), an ultrasonic assembly (13) of the ultrasonic probe (1) is arranged at a position corresponding to the position of the opening (21), the channel needle (2) is internally provided with a space for accommodating a strip-shaped member, and the opening (21) is configured to enable a distal end of the strip-shaped member to extend out of the channel needle (2) from the opening (21).

Description

Percutaneous surgical devices and percutaneous surgical equipment Technical Field

[0001] The present application relates to the technical field of ultrasonic instruments, and in particular to a percutaneous surgical device and a percutaneous surgical equipment. Background Art

[0002] Ultrasound probes are commonly used medical testing devices, housing an ultrasonic transducer (or ultrasonic assembly). Their basic operating principle is that the probe housing is in good contact with the surface of human skin via a coupling agent. Sound waves, in the form of pulsed beams, propagate from the surface of the ultrasonic transducer into soft tissue. Part of the sound waves is absorbed by the tissue, while part is reflected back to the ultrasonic transducer for detection. Ultrasound probes can process many pulsed beams instantaneously, producing real-time images for diagnosis. The shorter the wavelength and the higher the frequency of the sound waves, the higher the image resolution. Therefore, high-frequency ultrasound probes are typically used to obtain clear ultrasound images. However, high-frequency pulses are more attenuated in soft tissue, meaning that high-frequency sound waves may not be sufficiently reflected from deeper structures for detection by the ultrasonic transducer.

[0003] Certain locations within the human body, such as tumors, are generally inaccessible to detection equipment through the body's natural cavities (e.g., the esophagus, rectum, etc.), so ultrasound testing can only be performed on the skin's surface. Existing techniques typically reduce the frequency of sound waves to obtain images of deep tissue, but this also reduces the resolution of deep images. This creates a problem: transcutaneous ultrasound struggles to obtain high-definition images of deep tissue. This makes it difficult to accurately assess the relationship between the puncture point and the tumor and surrounding tissue. Summary of the Invention

[0004] In view of this, the present application proposes a percutaneous surgical device and a percutaneous surgical equipment, which help to make percutaneous ultrasound detection more accurate.

[0005] According to one aspect of an exemplary embodiment of the present application, a percutaneous surgical device is provided, comprising an ultrasonic probe and a hollow channel needle, wherein: the distal end of the channel needle is a sharp tip, and an opening is provided on the tube wall of the channel needle near the distal end; the ultrasonic probe is configured to be located inside the channel needle, and the ultrasonic component of the ultrasonic probe is configured to be located corresponding to the position of the opening; there is a space inside the channel needle for accommodating a strip member, and the opening is configured to allow the distal end of the strip member to extend out of the channel needle from the opening.

[0006] According to the percutaneous surgical device of one aspect of an exemplary embodiment of the present application, optionally but not limiting, the opening angle of the opening in the circumferential direction of the channel needle is 100°-180°.

[0007] According to an aspect of the percutaneous surgical device of an exemplary embodiment of the present application, optionally, the percutaneous surgical device also includes a tee, a first straight tube is formed between the outlet of the tee and the first inlet of the tee, a second straight tube is formed between the middle opening of the first straight tube and the second inlet of the tee, and an angle is formed between the first straight tube and the second straight tube; the proximal end of the channel needle is connected to the outlet of the tee; the second inlet of the tee can be used to allow the strip to enter the channel needle.

[0008] According to a percutaneous surgical device of one aspect of an exemplary embodiment of the present application, optionally, the ultrasound probe has a probe shell, and: the probe shell includes a long slot and an ultrasound component mounting position located at the end of the long slot, the thickness of the probe shell at the ultrasound component mounting position is greater than the depth of the long slot; the ultrasound component mounting position has a guide bevel, which starts from the top of the slot at one end of the long slot connected to the ultrasound component mounting position and extends along the length direction of the long slot toward the middle of the ultrasound component mounting position; the ultrasound component is configured to be located in the ultrasound component mounting position.

[0009] According to the percutaneous surgical device of one aspect of an exemplary embodiment of the present application, optionally, the ultrasound probe further includes a flexible circuit board arranged in the long slot, a first end of the flexible circuit board is connected to the ultrasound component, and a second end of the flexible circuit board is used to connect to the ultrasound host.

[0010] According to the percutaneous surgical device of one aspect of an exemplary embodiment of the present application, optionally, the long slot is configured to accommodate a strip.

[0011] In the percutaneous surgical device according to one aspect of the exemplary embodiment of the present application, optionally, the long groove is formed by a hard material.

[0012] According to another aspect of an exemplary embodiment of the present application, a percutaneous surgical device is provided, comprising a percutaneous surgical device and a handle according to the aforementioned aspects of an exemplary embodiment of the present application, wherein: a steering motor and a gear set are accommodated inside the housing of the handle; the gear set is connected to the steering motor and to an ultrasonic probe arranged in the channel needle.

[0013] According to another aspect of the percutaneous surgical device of an exemplary embodiment of the present application, optionally, the gear set is composed of a connecting gear and a steering gear, wherein: the connecting gear is sleeved on the shaft of the steering motor; the steering gear is sleeved on the channel needle and is located near the proximal end of the channel needle, and the steering gear is engaged with the connecting gear.

[0014] According to the technical solution of the embodiment of the present application, a channel needle is used to establish a percutaneous channel into the body, which is equipped with an ultrasound component and has space for the strip required for surgery, thereby obtaining high-definition images of the internal tissue, thereby enabling surgical operations with the assistance of high-definition images. When used in ablation surgery, placing the ablation needle in the percutaneous surgical device of the present application can improve the accuracy of ablation. In particular, when used for tumor ablation, it helps to ablate the tumor as completely as possible without damaging the surrounding area of ​​the tumor tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For purposes of illustration and not limitation, the present application will now be described in terms of its preferred embodiments, particularly with reference to the accompanying drawings, in which:

[0016] FIG1 is a schematic diagram of the external appearance of an embodiment of a percutaneous surgical device according to an exemplary embodiment of the present application;

[0017] FIG2 is a schematic diagram of an exploded state of an embodiment of a percutaneous surgical device according to an exemplary embodiment of the present application;

[0018] FIG3 is a schematic diagram of the appearance of another embodiment of a percutaneous surgical device in an exemplary embodiment of the present application;

[0019] FIG4 is a schematic diagram of a cross-section of a channel needle of another embodiment of a percutaneous surgical device in an exemplary embodiment of the present application;

[0020] FIG5 is a schematic diagram of the main components inside the handle of an embodiment of an intracorporeal ultrasound device in an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present application with reference to the accompanying drawings. Figure 1 is a schematic diagram illustrating the external appearance of a percutaneous surgical device according to an exemplary embodiment of the present application, and Figure 2 is a schematic diagram illustrating a disassembled state of a percutaneous surgical device according to an exemplary embodiment of the present application. In the following description, for ease of explanation only, from the perspective of the device user, i.e., the surgeon, the upper left portion of Figures 1 and 2 is described as the distal end, and the lower right portion as the proximal end.

[0022] Percutaneous surgical device 100 includes a percutaneous surgical apparatus 200 and a handle 300. Percutaneous surgical apparatus 200 includes an ultrasonic probe 1, a channel needle 2, and a tee 4. The probe housing of ultrasonic probe 1 includes an ultrasonic component mounting position 11 and a slot 12. Ultrasonic component 13 of ultrasonic probe 1 is disposed within ultrasonic component mounting position 11. Ultrasonic component 13 is a component for generating and receiving ultrasonic waves. It contains an ultrasonic transducer, which emits ultrasonic waves, receives returning sound waves, and performs acoustic-to-electrical and electrical-to-acoustic conversion.

[0023] The ultrasound probe 1 is placed within the hollow access needle 2. The access needle 2 has ample space to accommodate the ultrasound probe 1 and, after inserting it, the elongated, surgically shaped object. For example, when performing an ablation procedure, a flexible ablation needle 3 can be inserted into the access needle. Alternatively, when tissue irrigation is required, a water pipe can be inserted into the access needle. For illustrative purposes only, this embodiment uses the insertion of the ablation needle 3 as an example.

[0024] The distal end of the channel needle 2 is a sharp tip, which enables the channel needle 2 to penetrate the skin. As a result, the ultrasound probe 1 penetrates the skin to enter the human body and perform ultrasound detection, rather than entering the human body through the human cavity and performing ultrasound detection. An opening 21 is provided on the tube wall near the distal end of the channel needle 2. The width of the opening 21 is set to occupy a range of 120° in the circumferential direction of the channel needle 2, and the length is set to be longer than the acoustic window of the ultrasound probe 1. In addition, because the ablation needle 3 also needs to be set in the channel needle 2 for the purpose of performing an ablation operation, and the ablation end 31 needs to extend from the opening 21, so the length of the opening 21 must also be sufficient to leave a corresponding extension space for the ablation end 31.

[0025] The proximal end of the channel needle 2 is connected to the outlet 411 of the tee tube 4. The tee tube 4 includes a first straight tube 41 and a second straight tube 42. The ablation needle 3 can be configured as a flexible ablation needle, whose ablation end 31 enters the channel needle 2 from the second inlet 421 and then extends from the opening 21.

[0026] In FIG2 , the opening at the top of the long slot 12 is shown as facing the upper right in FIG2 , and the thickness of the ultrasonic component mounting position 11 (the dimension of the probe housing in the direction from the lower left to the upper right in FIG2 ) is greater than the depth of the long slot 12 (i.e., the dimension from the bottom to the top of the long slot 12). A guide bevel 111 is provided at a position of the ultrasonic component mounting position 11 near the long slot 12, which facilitates the advancement of the flexible ablation needle 3 in the channel needle 2, thereby allowing the ablation end 31 to smoothly extend from the opening 21. When the ablation needle 3 is inserted into the channel needle 2, the ablation needle tail 33 is positioned outside the second straight tube 42, thereby forming a certain angle with the ablation needle body 32, and the ablation needle body 32 also forms a certain angle with the ablation end 31, so that the ablation end 31 can be swung left and right by manipulating the ablation needle tail 33, thereby improving the flexibility of the ablation operation.

[0027] The distal end of the handle 300 is connected to the proximal end of the elongated slot 12. In other words, the elongated slot 12 serves to connect the ultrasound assembly mounting position 11 with the handle 300. The slotted shape allows for better utilization of the space within the access needle 2. Placing the ablation needle body 32 within the slot 12 helps reduce the diameter of the access needle 2. A circuit board, preferably a flexible circuit board, can also be placed within the elongated slot 12. The first end of the flexible circuit board is connected to the ultrasound assembly 13, and the second end of the flexible circuit board is used to connect to the ultrasound mainframe, thereby connecting the ultrasound assembly 13 to the ultrasound mainframe (not shown).

[0028] Figure 3 is a schematic diagram of the appearance of another embodiment of the percutaneous surgical device in the embodiment of the present application, and Figure 4 is a schematic diagram of the cross-section of the channel needle in another embodiment of the percutaneous surgical device in the embodiment of the present application. According to an exemplary embodiment of the present application, a first lumen 201 and a second lumen 202 extending along the axial direction of the channel needle 2 may be provided in the channel needle 2, which are respectively used to accommodate the ultrasound probe 1 and the above-mentioned strip, such as the ablation needle 3 shown in Figure 3. The structure of the handle 300 in another embodiment of the percutaneous surgical device in the embodiment of the present application is the same as the structure of the handle in the actual examination method described above. In order to clearly illustrate the components such as the ultrasound probe 1, only a part of the handle 300 is shown in Figure 3. Compared with the aforementioned embodiment of the percutaneous surgical device in the embodiment of the present application, the channel needle 2 of this another embodiment has a relatively large radial dimension. Therefore, compared with the structure of the aforementioned embodiment of the percutaneous surgical device, it is more suitable for use in situations where the part to be punctured is relatively hard.

[0029] Figure 5 is a schematic diagram of the main internal components of a handle of an embodiment of an intracorporeal ultrasound device according to an exemplary embodiment of the present application. As shown in Figure 5, the handle housing 50 of the handle 300 houses a steering motor 51 and a gear set 55. The gear set 55 includes a steering gear 52 mounted on the ultrasound probe 1 and located near the proximal end of the access needle 2, and a connecting gear 53 mounted on the shaft of the steering motor. The steering gear 52 and the connecting gear 53 mesh, enabling the ultrasound probe 1 to rotate about its axis when the steering motor 51 rotates. The maximum rotation angle can be limited by the width of the opening 21. The steering motor 51 can be a stepper motor to improve steering accuracy. The handle housing 50 can be provided with a forward rotation button 501 and a reverse rotation button 502 for the access needle 2, respectively, for controlling clockwise and counterclockwise rotation of the ultrasound probe 1. From an initial position, the steering motor 51 can rotate 90° in both the forward and reverse directions.

[0030] According to the technical solution of the embodiments of the present application, a channel needle is used to establish a percutaneous channel into the body, which is equipped with an ultrasound component and has space for the surgical strips. This allows for obtaining high-definition images of internal tissues, thereby enabling surgical procedures to be performed with the assistance of high-definition images. When used in ablation surgery, placing the ablation needle in the percutaneous surgical device of the present application can improve the accuracy of ablation. When used for tumor ablation, it helps to ablate the tumor as completely as possible without damaging the surrounding area of ​​the tumor tissue.

[0031] The above specific embodiments do not constitute a limitation on the scope of protection of this application. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application shall be included within the scope of protection of this application.

Claims

1. A percutaneous surgical device (200), characterized in that, It includes an ultrasonic probe (1) and a hollow channel needle (2), where: The distal end of the channel needle (2) is a sharp tip, and an opening (21) is provided on the tube wall of the channel needle (2) close to the distal end; The ultrasonic probe (1) is arranged to be located inside the channel needle (2), and the ultrasonic component (13) of the ultrasonic probe (1) is arranged to be located at a position corresponding to the opening (21); There is a space for accommodating a strip in the channel needle (2), and the opening (21) is arranged to allow the distal end of the strip to extend out of the channel needle (2) from the opening (21).

2. The percutaneous surgical device (200) according to claim 1, characterized in that, The opening angle of the opening (21) in the circumferential direction of the channel needle (2) is 100°-180°.

3. The percutaneous surgical device (200) according to claim 1 or 2, characterized in that, It further includes a three-way pipe (4). A first straight pipe (41) is formed between the outlet (411) and the first inlet (431) of the three-way pipe (4). A second straight pipe (42) is formed between the middle opening of the first straight pipe (41) and the second inlet (421) of the three-way pipe. An included angle is formed between the first straight pipe (41) and the second straight pipe (42); The proximal end of the channel needle (2) is connected to the outlet (411) of the three-way pipe (4); The second inlet (421) of the three-way pipe (4) is used for the strip to enter the channel needle (2).

4. The percutaneous surgical device (200) according to claim 1, characterized in that, The ultrasonic probe (1) has a probe housing, and: The probe housing includes a long groove (12) and an ultrasonic component mounting position (11) at the end of the long groove (12). The thickness of the probe housing at the ultrasonic component mounting position (11) is greater than the depth of the long groove (12); The ultrasonic component mounting position (11) has a guiding inclined surface (111). The guiding inclined surface (111) starts from the groove top at one end of the long groove (12) connected to the ultrasonic component mounting position (11) and extends along the length direction of the long groove (12) to the middle of the ultrasonic component mounting position (11); The ultrasonic component (13) is arranged to be located in the ultrasonic component mounting position (11).

5. The percutaneous surgical device (200) according to claim 4, characterized in that, The ultrasonic probe (1) further includes a flexible circuit board arranged in the long groove (12). The first end of the flexible circuit board is connected to the ultrasonic component (13), and the second end of the flexible circuit board is used to connect to an ultrasonic host.

6. The percutaneous surgical device (200) according to claim 5, characterized in that, The long groove (12) is arranged to accommodate the strip.

7. The percutaneous surgical device (200) according to claim 5, 6 or 7, characterized in that, The long groove (12) is formed by a hard material.

8. A percutaneous surgical device (100), characterized in that, It includes a percutaneous surgical device (200) according to any one of claims 1-7 and a handle (300). The percutaneous surgical device (200) is connected to the handle (300), where: A steering motor and a gear set are accommodated inside the housing of the handle (300); The gear set is connected to the steering motor and is connected to the ultrasonic probe (1) arranged in the channel needle (2).

9. The percutaneous surgical device (100) according to claim 8, characterized in that, The gear set is composed of a connecting gear and a steering gear, where: The connecting gear is sleeved on the shaft of the steering motor; The steering gear sleeve is sleeved on the ultrasonic probe (1) and is near the proximal end of the channel needle (2), and the steering gear meshes with the connecting gear.

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